MX167724B - STABLE POLYMERS IN EMULSION AND IMPROVED PROCESS FOR ITS PREPARATION - Google Patents
STABLE POLYMERS IN EMULSION AND IMPROVED PROCESS FOR ITS PREPARATIONInfo
- Publication number
- MX167724B MX167724B MX022627A MX2262790A MX167724B MX 167724 B MX167724 B MX 167724B MX 022627 A MX022627 A MX 022627A MX 2262790 A MX2262790 A MX 2262790A MX 167724 B MX167724 B MX 167724B
- Authority
- MX
- Mexico
- Prior art keywords
- stage
- polymer
- emulsion
- hydrophobic
- latex
- Prior art date
Links
- 239000000839 emulsion Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 229920000642 polymer Polymers 0.000 title abstract 3
- 229920001477 hydrophilic polymer Polymers 0.000 abstract 5
- 229920001600 hydrophobic polymer Polymers 0.000 abstract 3
- 239000004908 Emulsion polymer Substances 0.000 abstract 2
- 239000012792 core layer Substances 0.000 abstract 2
- 238000007720 emulsion polymerization reaction Methods 0.000 abstract 2
- 230000002209 hydrophobic effect Effects 0.000 abstract 2
- 239000004816 latex Substances 0.000 abstract 2
- 229920000126 latex Polymers 0.000 abstract 2
- 239000000178 monomer Substances 0.000 abstract 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 239000008346 aqueous phase Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000012071 phase Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F291/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polymerisation Methods In General (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Graft Or Block Polymers (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
La presente invención se refiere a un proceso mejorado para producir una emulsión de látex estabilizada, el proceso comprende las etapas de: a) hacer reaccionar monómeros que forman látex bajo condiciones de reacción predeterminadas de polimerización por emulsión, para formar un polímero hidrofílico de la primera etapa; y b) poner en contacto el polímero de la primera etapa con una cantidad efectiva de por lo menos un monómero hidrofóbico que forma látex bajo condiciones de reacción de polimerización por emulsión predeterminadas, para formar un polímero hidrofóbico de la segunda etapa, en el que el polímero de hidrofóbico de la segunda etapa se divide en el polímero hidrofílico de la primera etapa por lo que produce un polímero de emulsión de núcleo-capa invertido, en donde la mejora comprende la etapa adicional de ajustar el pH del políemro de la emulsión núcleo-capa invertido mediante una cantidad efectiva para disolver el polímero hidrofílico de la primera etapa, el polímero hidrofílico de la primera etapa es soluble y el polímero hidrofóbico de la segunda etapa es insoluble por el ajuste del pH, por lo que se produce un adhesivo de emulsión de látex estabilizado, que comprende una fase acuosa contínua que contiene el polímero hidrofílico de la primera etapa y una fase discontínua que contiene partículas discretas, estabilizadas del polímero hidrofóbico de la segunda etapa.The present invention relates to an improved process for producing a stabilized latex emulsion, the process comprises the steps of: a) reacting latex-forming monomers under predetermined emulsion polymerization reaction conditions, to form a hydrophilic polymer of the former stage; and b) contacting the first stage polymer with an effective amount of at least one latex-forming hydrophobic monomer under predetermined emulsion polymerization reaction conditions, to form a second stage hydrophobic polymer, wherein the polymer of the second stage hydrophobic is divided into the hydrophilic polymer of the first stage so that it produces an inverted core-layer emulsion polymer, where the improvement comprises the additional step of adjusting the pH of the core-layer emulsion polymer inverted by an effective amount to dissolve the first stage hydrophilic polymer, the first stage hydrophilic polymer is soluble, and the second stage hydrophobic polymer is insoluble by adjusting the pH, whereby an emulsion adhesive of stabilized latex, which comprises a continuous aqueous phase containing the first stage hydrophilic polymer and a phase discontinuous containing discrete, stabilized particles of the second stage hydrophobic polymer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US41629689A | 1989-10-02 | 1989-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX167724B true MX167724B (en) | 1993-04-07 |
Family
ID=23649394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX022627A MX167724B (en) | 1989-10-02 | 1990-09-28 | STABLE POLYMERS IN EMULSION AND IMPROVED PROCESS FOR ITS PREPARATION |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0495000A4 (en) |
| JP (1) | JP2986909B2 (en) |
| AU (1) | AU6649590A (en) |
| CA (1) | CA2066596C (en) |
| FI (1) | FI108353B (en) |
| MX (1) | MX167724B (en) |
| PT (1) | PT95483A (en) |
| WO (1) | WO1991004990A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5212251A (en) * | 1990-09-24 | 1993-05-18 | Rohm And Haas Company | Alkali-resistant core-shell polymers |
| GB9110418D0 (en) * | 1991-05-14 | 1991-07-03 | Du Pont Howson Ltd | Radiation-sensitive material |
| DE19542181A1 (en) | 1995-11-13 | 1997-05-15 | Hoechst Ag | Solvent-free synthetic resins and synthetic resin mixtures |
| US6767638B2 (en) * | 2002-05-16 | 2004-07-27 | Meadwestvaco Corporation | Core-shell polymeric compositions |
| US11591472B2 (en) | 2016-12-02 | 2023-02-28 | The Williamette Valley Company Llc | Wax-organic extender emulsion and method for manufacture thereof |
| CN114456324B (en) * | 2021-12-30 | 2022-09-13 | 广东恒和永盛集团有限公司 | Water-based low-water-permeability single-component acrylate emulsion and preparation method thereof |
| US12152151B2 (en) | 2022-03-29 | 2024-11-26 | The Willamette Valley Company Llc | Adhesive mixture having an organic slurry dispersion and process for manufacture thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4894397A (en) * | 1988-04-21 | 1990-01-16 | S. C. Johnson & Son, Inc. | Stable emulsion polymers and methods of preparing same |
-
1990
- 1990-09-17 CA CA002066596A patent/CA2066596C/en not_active Expired - Lifetime
- 1990-09-17 JP JP2515494A patent/JP2986909B2/en not_active Expired - Fee Related
- 1990-09-17 WO PCT/US1990/005261 patent/WO1991004990A1/en not_active Ceased
- 1990-09-17 EP EP19900916634 patent/EP0495000A4/en not_active Withdrawn
- 1990-09-17 AU AU66495/90A patent/AU6649590A/en not_active Abandoned
- 1990-09-28 MX MX022627A patent/MX167724B/en unknown
- 1990-10-01 PT PT95483A patent/PT95483A/en not_active Application Discontinuation
-
1992
- 1992-04-01 FI FI921433A patent/FI108353B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| FI108353B (en) | 2002-01-15 |
| CA2066596C (en) | 1994-04-26 |
| EP0495000A1 (en) | 1992-07-22 |
| WO1991004990A1 (en) | 1991-04-18 |
| JP2986909B2 (en) | 1999-12-06 |
| FI921433L (en) | 1992-04-01 |
| JPH05500678A (en) | 1993-02-12 |
| EP0495000A4 (en) | 1992-10-21 |
| CA2066596A1 (en) | 1991-04-03 |
| AU6649590A (en) | 1991-04-28 |
| FI921433A0 (en) | 1992-04-01 |
| PT95483A (en) | 1991-06-25 |
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